Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #ifndef _ASM_NIOS2_TLBFLUSH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define _ASM_NIOS2_TLBFLUSH_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) struct mm_struct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * TLB flushing:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *  - flush_tlb_all() flushes all processes TLB entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *  - flush_tlb_mm(mm) flushes the specified mm context TLB entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *  - flush_tlb_range(vma, start, end) flushes a range of pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  *  - flush_tlb_page(vma, address) flushes a page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *  - flush_tlb_kernel_page(address) flushes a kernel page
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  *  - reload_tlb_page(vma, address, pte) flushes the TLB for address like
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  *    flush_tlb_page, then replaces it with a TLB for pte.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) extern void flush_tlb_all(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) extern void flush_tlb_mm(struct mm_struct *mm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 			    unsigned long end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static inline void flush_tlb_page(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 				  unsigned long address)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	flush_tlb_range(vma, address, address + PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static inline void flush_tlb_kernel_page(unsigned long address)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	flush_tlb_kernel_range(address, address + PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) extern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 			    pte_t pte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #endif /* _ASM_NIOS2_TLBFLUSH_H */